3,4-Propylenedioxythiophene-2,5-dicarboxylic acid

3,4-亚丙基二氧噻吩-2,5-二羧酸

Also known as: 2,3-Dihydro-2H-thieno[3,4-b][1,4]dioxepin-6,8-dicarboxylic acid, 2H-Thieno[3,4-b][1,4]dioxepin-6,8-dicarboxylic acid, 3,4-dihydro-, 3,4-Dihydro-2H-thieno[3,4-b][1,4]dioxepine-6,8-dicarboxylic acid, 3,4-Propylenedioxythiophene-2,5-dicarboxylic acid 97%

3,4-Propylenedioxythiophene-2,5-dicarboxylic acid (CAS 177364-98-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8O6S and a molecular weight of 244.22100 g/mol. It is also known as 2,3-Dihydro-2H-thieno[3,4-b][1,4]dioxepin-6,8-dicarboxylic acid, 2H-Thieno[3,4-b][1,4]dioxepin-6,8-dicarboxylic acid, 3,4-dihydro- and 3,4-Dihydro-2H-thieno[3,4-b][1,4]dioxepine-6,8-dicarboxylic acid. Key properties include a melting point of >250ºC (dec.), a boiling point of 482.583ºC at 760 mmHg, a density of 1.621g/cm3 and a flash point of 245.658ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

177364-98-6

Jingsj CID

J-1391048-6

Molecular Formula

C₉H₈O₆S

Chinese Name

3,4-亚丙基二氧噻吩-2,5-二羧酸

Molecular Weight

244.22100 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026